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    Airfoil NACA 0012 Extruded Aluminum

    Hi, Does anyone know how is the cross-sectional design of an extruded aluminum blade with profile NACA 0012? I have been able to find designs for extruded aluminum blades with profile NACA 8H12 but not for 0012. Thank you!
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    Autorotation - AOA

    Hello Everyone, I am learning about autorotation. I understand the basic concepts including the forces acting on an airfoil and how the blade is divided in a driven, driving and stall regions with points of equilibrium between them. The regions are different because the direction of resultant...
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